/* 
头部
 */

.header{
    background-color: #f7f7f7;
}

.header__wrap{
    width:1200px;
    height:80px;
    position: relative;
    margin:0 auto;
}

.header__logo{
    width:150px;
    height:38px;
    line-height: 38px;
    font-size:20px;
    color:#07111b;
    text-indent: 50px;
    background:url('../image/logo.png') left center no-repeat;
    background-size:38px 38px;
    position: absolute;
    top:50%;
    margin-top: -19px;
    left:20px;
}

.header__nav{
    position: absolute;
    right:20px;
    height:38px;
    line-height: 38px;
    top:50%;
    margin-top: -19px;
}

.header__nav-item{
    color:#292f35;
    font-size: 14px;
    display: inline-block;
    margin-left: 40px;
    font-weight: bold;
}

.header__nav-item:hover{
    color:#f01400;
}

.header__nav-item_status_active{
    color:#f01400;
    border-bottom: 2px solid red;
}

.header__nav-item_custom_button{
    background:#000;
    color:#f4f4f5;
    text-align: center;
    width:90px;
    border-radius: 4px;
}   

/* 
第一屏
 */
.screen-1{
    height:800px;
    background:url('../image/bg-screen-1.png') no-repeat center;
    background-size: cover;
    position: relative;
    overflow: hidden;
}

.screen-1__heading{
    font-weight: normal;
    margin:0;
    padding:0;
    font-size:46px;
    color:#4d555d;
    text-align: center;
    padding-top:152px;
}

.screen-1__heading b{
    color:#f01400;
    font-weight: normal;
}

.screen-1__phone{
    width:1375px;
    height:305px;
    margin:0 auto;
    background:url('../image/screen-1-phone.png') no-repeat center;
    position: absolute;
    left:50%;
    margin-left:-687px;
    bottom: 180px;
    z-index: 2;
}

.screen-1__shadow{
    width:1233px;
    height:411px;
    margin:0 auto;
    background:url('../image/screen-1-shadow.png') no-repeat center;
    position: absolute;
    left:50%;
    margin-left:-616px;
    bottom: 0px;
    z-index: 1;
    opacity: .8;
}

/* 
第二屏
 */
.screen-2{
    background-color: #fafafa;
    height:800px;
    position: relative;
    overflow: hidden;
}

.screen-2__heading{
    font-weight: normal;
    margin:0;
    padding:0;
    font-size:46px;
    color:#f01400;
    text-align: center;
    padding-top:96px;
    line-height: 48px;
}

.screen-2__subheading{
    font-weight: normal;
    margin:0;
    padding:0;
    font-size:14px;
    color:#2c3137;
    text-align: center;
    padding-top:25px;
    line-height: 28px;
}

.screen-2__phone{
    width:928px;
    height:873px;
    background:url("../image/bg-screen-2.png") no-repeat center;
    position:absolute;
    left:50%;
    margin-left: -464px;
    bottom: -345px;
    z-index:2;
}

.screen-2__point{
    width:108px;
    height:20px;
    padding-right:112px;
    font-size:22px;
    line-height:22px;
    color:#4d555d;
    background:url("../image/icon-point-right.png") no-repeat center right;
    position: absolute;
}

.screen-2__point_custom_right{
    padding:0 0 0 112px;
    background:url("../image/icon-point-left.png") no-repeat center left;
}

.screen-2__point_i_1{
    top:150px;
    left:-164px;
}
.screen-2__point_i_2{
    top:30px;
    right:150px;
}
.screen-2__point_i_3{
    top:330px;
    right:30px;
}   

/* 
第三屏
 */
.screen-3 {
    color: rgb(255,255,255);
    height: 800px;
    background-color: #a71316;
}

.screen-3__wrap {
    max-width: 1200px;
    min-width: 800px;
    margin: 0px auto;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.screen-3__heading {
    position: absolute;
    top: 90px;
    left: 10px;
    width: 580px;
    font-size: 36px;
}
.screen-3__subheading {
    position: absolute;
    top: 170px;
    left: 10px;
    width: 580px;
    font-size: 16px;
}

.screen-3__phone{
    width: 729px;
    height: 900px;
    position: absolute;
    top: 200px;
    left: 465px;
    background: url("../image/bg-screen-3.png") no-repeat;
}

.screen-3__features{
    position: absolute;
    top:395px;
    left:0;
    width:320px;
    height:280px;
}

.screen-3__features__item{
    width:138px;
    height:118px;
    border:1px solid #cb7173;
    margin:0 20px 20px 0;
    float:left;
    border-radius: 4px;
    color:#fff;
}

.screen-3__features__item__number{
   height:36px;
   font-size:36px;
   line-height:36px;
   text-align:center;
   padding:30px 0 10px 0;
}

.screen-3__features__item__desc{
   height:14px;
   font-size:14px;
   line-height:14px;
   text-align:center;
}

/* 第四屏 */
.screen-4{
    background-color: #fff;
    text-align: center;
    height: 800px;
}
.screen-4__wrap {
    max-width: 1200px;
    min-width: 800px;
    margin: 0px auto;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.screen-4__heading {
    position: absolute;
    top: 80px;
    width: 100%;
    font-size: 42px;
    color: #f01414;
}
.screen-4__subheading {
    position: absolute;
    top: 180px;
    width: 100%;
    font-size: 16px;
}

.screen-4__type {
    width: 1300px;
    margin-left: 30px;
    height: 270px;
    bottom:220px;
    position: absolute;
    font-size: 16px;
    text-align: center;
}

.screen-4__type-item {
    width: 220px;
    height: 270px;
    float: left;
    margin-right: 90px;
    position: relative;
}
.screen-4__type-item-name{
    width: 100%;
    height: 40px;
    position: absolute;
    top: 300px;
    font-size: 16px;
    height: 16px;
    line-height: 16px;
    color: #2c3238;
}
.screen-4__type-item-storage{

    width: 100%;
    height: 40px;
    position: absolute;
    top: 328px;
    font-size: 9px;
    height: 9px;
    line-height: 9px;
    color: #93999f;
}

.screen-4__type .photo{
    width: 240px;
    height: 270px;
    position: absolute;
    left: 0;
    top: 0;
}

    .screen-4__type-item_i_1 {
        background: url("../image/phone-1.png") center left no-repeat;
    }

    .screen-4__type-item_i_2 {
        background: url("../image/phone-2.png") center left no-repeat;
    }

    .screen-4__type-item_i_3 {
        background: url("../image/phone-3.png") center left no-repeat;
    }

    .screen-4__type-item_i_4 {
        background: url("../image/phone-4.png") center left no-repeat;
    }


/* 第五屏开始 */
.screen-5 {
    height: 800px;
    text-align: center;
    overflow: hidden;
    background: #d9dde1;
    position: relative; 
}
.screen-5__back{
    width: 100%;
    height: 420px;
    background: url("../image/bg-screen-5.png") no-repeat bottom center ;
    background-size: cover;
    position: absolute;
    bottom: -100px;
}

.screen-5__wrap {
    max-width: 1200px;
    min-width: 800px;
    margin: 0px auto;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.screen-5__heading {
    position: absolute;
    top: 180px;
    width: 100%;
    font-size: 42px;
    color: #f01414;
}
.screen-5__subheading {
    position: absolute;
    top: 270px;
    width: 100%;
    font-size: 16px;
}


.buy {
    height: 80px;
    padding: 120px 0px;
    background: url("../image/bg-screen-buy.png") no-repeat bottom center #2b333b;
}

.buy__button:hover,
.buy__button {
    width: 240px;
    height: 80px;
    line-height: 80px;
    text-align: center;
    font-size: 24px;
    color: #fff;
    border-radius: 3px;
    margin: 0px auto;
    display: block;
    background-color: #f01414;
    transition:all .5s;
}
.buy__button:hover{
    box-shadow: 0 10px 10px rgba(0,0,0,.5);
    transform:translate(0,-5px);
}

/*页脚模块开始*/
.footer {
    height: 80px;
    line-height: 80px;
    background-color: #07111b;
    text-align: center;
    color: #fff;
}


/*大纲模块*/

.outline {
    position: fixed;
    padding: 5px 10px;
    bottom: 120px;
    right: 0;
    z-index: 1;
    background-color: #fff;
    box-shadow: 0px 4px 12px 0px rgba(7, 17, 27, 0.1);
}

.outline__item {
    display: block;
    width: 40px;
    height: 30px;
    line-height: 30px;
    padding: 5px 0;
    background: rgb(255,255,255);
    margin: 5px 0px 0px;
    border-top: 1px solid #eee;
    text-align: center;
    color: #93999f;
}
.outline__item:first-child{
    border:none;
}
.outline__item_status_active{
    color: #000;
}